journalctl
Verified for current stable LTS
Journalctl Commands
Journalctl command syntax with verified terminal examples.
Commands
8 commands for Journalctl
journalctl Containers
Journalctl Command: Delete Journal Logs Older Than 2 Days
journalctl --vacuum-time 2d journalctl Operations
Journalctl Command: Filter Messages Time Range
journalctl -S <now|today|yesterday|tomorrow|...> -U "{YYYY-MM-DD HH:MM:SS}" journalctl Operations
Journalctl Command: Show All Messages By Specific Unit
journalctl -u <unit> journalctl Operations
Journalctl Command: Show Latest Lines Follow New Messages
journalctl -n <n> -f journalctl Archive
Journalctl Command: Show Logs Since Unit Started
journalctl _SYSTEMD_INVOCATION_ID=$(systemctl show --value --property=InvocationID <unit>) journalctl Operations
Journalctl Command: Show Messages By Executable
journalctl <path/to/executable> journalctl Operations
Journalctl Command: Show Messages By Process Id
journalctl _PID=<pid> journalctl Operations
Journalctl Command: Show Messages Priority Level Errors Boot Before Last Shutdown
journalctl -b -1 -p 3 Suggest a Journalctl Command
Submit missing workflows, corrections, or verified alternatives for this tool.
FAQ
Coverage: Focused examples for common Journalctl workflows.
Verified version: current stable LTS.
Verification: Test commands in a disposable workspace and submit notes for edge cases.